In 246 days · Sun, Apr 18, 2027
Don't let race day sneak up
One email during race week. That's it.
Sunday, April 18th, 2027
Fort Collins, CO, Fort Collins CO
Half
33–59°F · low rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2026
28–56°F
dry
2025
30–34°F
rain
2024
32–39°F
dry
2023
37–70°F
dry
2022
28–56°F
dry
2021
26–56°F
dry
2020
17–44°F
dry
2019
34–62°F
dry
2018
32–55°F
dry
2017
45–73°F
dry
Best months to race in Colorado →
About this race
Event Overview
Welcome to the 54th running of the Horsetooth Half Marathon, Presented by Fort Collins Connexion.
Race Details
- Date: 2027-04-18
- Location: Fort Collins, CO
- Start Point: Hughes Stadium, the former home of the CSU Rams
- Finish Point: New Belgium Brewery
Course Description
Your race will take you on a scenic point-to-point journey.
- Scenic Route: The course traverses beautiful landscapes along Centennial Drive.
- Challenging Hills: You will encounter the challenging hills along the shorelines of the shimmering Horsetooth Reservoir.
- Downhill Finish: The finish is on the downhill Poudre River recreation trail.
- Elevation: The course provides a net loss in elevation, making it surprisingly fast.
Who Can Participate
- Elite Runners: Perfect for seasoned competitors seeking a fast time.
- First-Time Half Marathoners: A challenging but accessible experience for beginners.
- All Abilities: Suitable for all levels of runners looking for a memorable race.
- Community Event: Join fellow running enthusiasts in a spirited environment.
Additional Information
For more details and registration, please visit Horsetooth Half Marathon.
Course map
Train with a club
Run clubs near Fort Collins to train with before race day.
Suggested Races
Organize this race?
Claim it free to manage your listing — and get it featured for free, while spots last.